Hummingbirds of North America: The Photographic Guide
Howell, Steve N.G.
Life Histories of North American Thrushes, Kinglets, and Their Allies
Bent, Arthur Cleveland and Collaborators
Systematics and Behavior of Some North American Woodpeckers, Genus Picoides (Aves)
Short, Lester L.
National Geographic Field Guide to the Birds of North America, Seventh Edition
DUNN, Jon L. and Jonathan ALDERFER
Bird Lore I-XXXII
The Audubon Society Master Guide to Birding, Volume. 3: Old World Warblers to Sparrows
Farrand, John, Jr. (editor)
Birds of Organ Pipe Cactus National Monument
Wilt, Richard A.
North American Birds: A Coloring Book
Handbook of Birds of Eastern North America
Chapman, Frank M.
U.S. Pacific Railroad Surveys: Reports of Explorations and Surveys. Volume IX, Part II
Baird, Spencer Fullerton
A Bibliography of the Catalogs, Lists, Faunal and Other Papers on the Butterflies of North America N
Field, William D.; Cyril F. Dos Passo; John H. Masters
Wild Birds of the Americas
SHORTT, Terence Michael